diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9114bef0..ad424980 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 1.8.4 (Unreleased)
+# 1.8.4 (June 22, 2021)
 
 * `function/stdlib`: The `flatten` function will now correctly return `cty.DynamicVal` if it encounters `cty.DynamicVal` anywhere in the given data structure, because it can't predict how many elements the result will have in that situation. ([#106](https://github.com/zclconf/go-cty/pull/106), [#107](https://github.com/zclconf/go-cty/pull/107))
 * `function/stdlib`: The `setproduct` function will no longer panic when given a set containing unknown values, which would therefore be a set with an unknown length. ([#109](https://github.com/zclconf/go-cty/pull/109))